The problem, according to Willow Garage, is the lack of a common platform for all that computational effort. Instead of enlarging the capabilities of a single machine, everyone is designing robots and the software to control them, from the ground up. To help change this, Willow Garage is currently producing 25 copies of its model PR2 ( Personal Robot 2), a two­armed, wheeled machine that can switch off the electricity, open doors and move through a room. Ten of the robots will stay in­house, but 10 more will go to outside research groups, and everyone will share their advances.

　　This way,

　　Berger says, if you want to build the robotic equivalent (等同物) of a Twitter, you won't start by constructing a computer. “You build the thing that's new.”

　　本文是一篇科普说明文，简要介绍了全能机器人的发展状况、研发困境和解决方案。

　　1．The robots are mentioned to do some specific jobs EXCEPT in ________.

　　A. battle fields

　　B. operation room

　　C. people's houses

　　D. wild fields

　　答案：D　细节理解题。根据文章第一段第一句中的“soldiers，surgeons and homeowners”可知机器人已应用于战场、手术室和家庭，并没有提到D项，故答案为D。

　　2．The multipurpose robot may be identified as a machine that ________.

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